The BAARA (Biological AutomAted RAdiotracking) system: a new approach in ecological field studies

PLoS One. 2015 Feb 25;10(2):e0116785. doi: 10.1371/journal.pone.0116785. eCollection 2015.

Abstract

Radiotracking is an important and often the only possible method to explore specific habits and the behaviour of animals, but it has proven to be very demanding and time-consuming, especially when frequent positioning of a large group is required. Our aim was to address this issue by making the process partially automated, to mitigate the demands and related costs. This paper presents a novel automated tracking system that consists of a network of automated tracking stations deployed within the target area. Each station reads the signals from telemetry transmitters, estimates the bearing and distance of the tagged animals and records their position. The station is capable of tracking a theoretically unlimited number of transmitters on different frequency channels with the period of 5-15 seconds per single channel. An ordinary transmitter that fits within the supported frequency band might be used with BAARA (Biological AutomAted RAdiotracking); an extra option is the use of a custom-programmable transmitter with configurable operational parameters, such as the precise frequency channel or the transmission parameters. This new approach to a tracking system was tested for its applicability in a series of field and laboratory tests. BAARA has been tested within fieldwork explorations of Rousettus aegyptiacus during field trips to Dakhla oasis in Egypt. The results illustrate the novel perspective which automated radiotracking opens for the study of spatial behaviour, particularly in addressing topics in the domain of population ecology.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Animals, Wild*
  • Behavior, Animal*
  • Egypt
  • Telemetry*

Grants and funding

The study was supported by the Ministry of Education, Youth and Sports of the Czech Republic (MEYS CR) No. MSM0021622416 (TB) and LO1212, CZ.1.07/2.3.00/30.0054. The infrastructure was supported by MEYS CR and EC (CZ.1.05/2.1.00/01.0017). Support was received from the Grant Agency of the ASCR no. IAA601110905 (IH) and the research intent of the ASCR no. RVO: 68081731. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.